| 摘要 |
<p>The invention concerns a magnetic material based on iron, cobalt, rare earths and boron and a magnet based on said material, in particular a bound magnet. Said material is characterised in that it has a composition corresponding to the following formula: R1xR2yFe ¿100-x-y-z-v-w-tCozM?1vM2tBw wherein: R1 represents at least an element selected among lanthanum, cerium, praseodymium, neodymium, samarium and europium, at least one of the praseodymium and neodymium being present in majority; R2 represents at least an element selected among terbium, dysprosium, holmium, erbium, thulium, ytterbium and lutetium, at least one of the terbium and dysprosium elements being present in majority; M1 represents at least an element selected among titanium, vanadium, molybdenum, niobium, zirconium, hafnium, tantalum, manganese and tungsten; M2 represents at least an element selected among aluminium, copper, gallium, carbon and silicon; and wherein x, y, z, v, w and t verify the following relationships: 3 ≤ x ≤ 5, 0.1 ≤ y ≤ 1.5, 0 < z ≤ 15, 0 ≤ v ≤ 3, 15 ≤ w ≤ 25, 0 ≤ t ≤3.</p> |
